International Journal of Agriculture and Forestry
p-ISSN: 2165-882X e-ISSN: 2165-8846
2012; 2(5): 257-261
doi: 10.5923/j.ijaf.20120205.09
M. C. Kiran , Anand Nandanwar , M. Venugopal Naidu , K. Ch. Varada Rajulu
Indian Plywood Industries Resarch and Training Institute IPIRTI, P. B. No 2273, Tumkur road, 60022, Bangalore
Correspondence to: K. Ch. Varada Rajulu , Indian Plywood Industries Resarch and Training Institute IPIRTI, P. B. No 2273, Tumkur road, 60022, Bangalore.
Email: |
Copyright © 2012 Scientific & Academic Publishing. All Rights Reserved.
Bamboo mat boards (BMB) is a plywood-like wooden board produced from woven mats of bamboo that are soaked inadhesive resin and then pressed firmly together in a hot press.BMB is becoming popular as an eco-friendly material in housing applications such as panelling, ceilings, prefabricated shelters, roofs, doors and door panels etc., hence information on thermal properties of BMB is desired to access it’s heat insulating value, in addition to other physical and mechanical properties.Investigations were carried out to evaluate the thermal conductivity of bamboo mat board (BMB) and to study the effect of density on thermal conductivity of BMB. The thermal conductivity of BMB was determined by a steady-state guarded hot-plate method keeping temperature at 30°C and 50°C considering Indian climatic conditions during summer at bulk densitiesof 0.75 to 1.65 g/cm3. Thermal conductivity increased from 0·121W/m-Kfor bulk density 0·765 g/ cm3 to0.384W/m-K for bulk density1.61 g/cm3. Linear trend line relationship between density and thermal conductivitywas derived with correlation coefficient value of 0.92. From the results, it was found that thermal conductivity of BMB increased with increasing bulk density.
Keywords: Thermal Conductivity, Guarded hot plate, Density, BMB
Figure 1. Thermal conductivity apparatus |
Figure 2. Effect of density on thermal conductivity of BMB |
[1] | “Standard Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus”, ASTM C518,2010 |
[2] | “Standard Test Method for Steady State Heat Flux Measurements and Thermal Transmission Properties by Means of the Guarded Hot Plate Apparatus”, ASTM International, West Conshohocken, ASTMC177, 2010. |
[3] | “Method of the determination of thermal conductivity of thermal insulation materials”, IS 3346, 1980. |
[4] | Venkateswaran A, “A note on the relationship between electrical properties and thermal conductivity of woods” Journal of Wood Science,Vol.8, No.1, 50-55, 1974. |
[5] | Naryanamurthi D, Ranganathan V, “The thermal conductivity of Indian timbers: part-1” Proceedings Mathematical Sciences, Vol 13, No.4, 1941. |
[6] | Pandey C.N, Kamla B.S, Jain J.C, “Thermal conductivity of some wood species of karnatka”, Indian Academy of Wood Sci., Vol.12, No.1,23-25, 1981. |
[7] | Jain V.K, Dubey Y.M, “A note on thermal conductivity of wood”, Indian Academy of Wood Sci., Vol.22, No.2,45-47, 1990. |
[8] | Dubey, Y. M, Jain J. D, Uniyal K. K, “Note on Thermal conductivity of some Indian timbers”, Journal of the Timber Development Association of India,Vol 46, No. 3/4, 14-18, 2000. |
[9] | Aswathanarayana B.S, Venugopal Naidu M, “Evaluation of thermal characteristics of wood based panels”, IPIRI/RR No.13, 1986. |
[10] | Tipler, Paul A, “Physics for Scientists and Engineers”, Third Edition, Extended Version 1-42, Worth Publishers, 1991. |
[11] | Oluyamo Sunday Samuel, Bello Olawale Ramon, YomadeOlabode Johnson, “Thermal Conductivity of Three Different Wood Products of Combretaceae Family; Terminalia superb, Terminaliaivorensis and Quisqualisindica”, Journal of Natural Sciences Research, Vol.2, No.4, 2012. |
[12] | Daniel, D. P, “Perfect ! Wood Win-Door Profiles”, Trace Laboratories, INC 5 North Park Drive Hunt Valley,MD 21030, USA. Pg. 1-5, 2010. |
[13] | Mahmood, Tabaddor, “Thermal and Mechanical Finite Element Modeling of Wood-Floor AssembliesSubjected to Furnace Exposure” Underwriters Laboratory, 07CA42520, NC9140, 2008. |
[14] | Burgstaller, Christopher, “Processing of thermal sensitive materials-a case study of wood plastic composites”Monatschefte fur Chemie 138, 34-346, 2007. |
[15] | Daniel, M. “Wood Plastic Deposite in Europe Vs USA-processing and product trends” Proceedings ‘Woodplastic composite 2005’. Applied marketing information, Vienna, 2005. |
[16] | Burgstaller, Christopher, “Investigation on the relationship between wood particle size, wood type and contenton the mechanical and physical properties of wood platic composites”. Doctoral thesis, Johannes Kepler University, Linz, Pg 25, 2006. |
[17] | Vanchai, Laemlaksakul, “Physical and Mechanical properties of particle board from Bamboo waste” WorldAcademy of Science, Engineering and Technology, 64, 2010. |
[18] | “Methods of Test for Wood Particle Boards and Boards from Other Lignocellulosic Materials”, IS 2380 (Part 1 to 21), 1977. |